Re: [R] difference between linear model & scatterplot matrix

Francesco, My guess would be collinearity of the predictors. The linear model gives you the best fit to all of the predictors at once; unless the predictors are orthogonal (which in a case like this is certainly not the case), there is no guarantee that the parameter estimates which give the best

[R] difference between linear model & scatterplot matrix

Dear R-users, I'm studing a DB, structured like this (just a little part of my dataset): _ Site Latitude Longitude Year Tot-Prod Total_Density dmp Dendoudi-1